When choosing a raw mineral to build with (such as for a tile), six digit quantities seem to break the formatting of the string and end up on two lines. The final digit ends up on the second line, while the first five digits end up partially obscured by the image of the mineral. I imagine this would happen with quantities greater than six digits as well.
Steps to Reproduce
Get 100,000 or more of a mineral used for construction, then look at the "select raw mineral" section of the build item description.
This issue has not been confirmed by a developer yet.